Weiteb coltpobation



J. H. PILLINGS.

MECHANISM FOR AUTOMATECALLY OPERATING LEVERS AND-THE LIKE.

APPLICATION FILED JULY 9. I919.

Patenmd' Nov. 2, 1920.

2 SHEETS-SHEEY I.

J. H. PILLfNGS MECHANISM FUR AUTOMATICALLY OPERATING LEVERS AND TH ELIKE.

APPLICATEGN FILED JULY 51.1919.

Patented NOV. 2, 1920.

2 SHEETS5HEET 2- ava ar UNITED STATES PATENT OFFICE.

JOHN H. PILLINGS, OF HAMILTON, OHIO, ASSIGNOR TO HOOVER AUTOMATIC TYPE-WRITER CORPORATION; OF HAMILTON, OHIO, A CORPORATION OF NEW YORK.

Specification of Letters Patent,

Patented Nov. 2, 1920.

Application filed July 9, 1919. Serial No. 309,697.

To all 107mm it may crmoemi:

Be, it known that 1, JOHN H. PnJANoH, n (-itizen of the United States.residing at Hamilton, in the county of Butler and State of Ohio. haveinvented a eertuin new and useful Improvement in Mechanism forAuton'mtieally ()porating Levers and the like, of Whieh the following".is a full, clear, and exnet deseription.

This invention relates to mechanism by whirh a plurality of lerors orother moving ports nmy he :iutonnitieally operated in proper,Slfllll'lllv as determined hy 'ierl'ora liom in u imti'ollor strip.

The invention is in the lndure of on iniprmenu ui upon the meehunisinfor tho some purpose whieh forms the suhje t moi" tr r of the Nil '11"Patent No. L ZHJHQ, and my own prior Potent Yo. 1.174.090. Each ol thesepoleniu shows the nieehonism in a form e peeinlly adapted for me ineomhinntion with a trpewritin; 'l|2l.!lll( in order that said nnu-hineniuy automatically write Worm letters.

The present im ntion is also shown in lHHI! espeeiully adapted 'l'orthis particular purpose: although it obviously is adapted for use inautomatically perating the keys and other ports of other mnrhines. asfor ex- :unple. mnHiezil instruments.

(-;('I]('l'2lll),', speaking, the ohjcrts of this in reniion are toproriide. for tho stated purpose, moehanism whirl as compared with theiner-hnnismool said prior patents, will rust less, he more elficient,andless liahle to lflltt'k and ,let out of order, and \vhieh may he moroeasily assembled and disassembled when necessary. 1

\Viththese and other ends in view, which will subsequently appear, theinvention eonvarious hangers; and tho cyhnderlifl has a,

sistit in the i'construrith'm and omh'i-nation ol parts Shown in thedrawing, hereinafter. desrrihed nnd ll-finitely pointhd out in tholhlfllflli lif'ltlllflfi.

In tin-drawing, higzuru l is n sido elrvntidnlpnrtly sol-tinned showingthe invention :i'ssoeinled with a t .peuriter nmhim-g Fig. 2 is :i.front (*lOYAllUll ol' sueh flint-imilliihl and u port of the typeu'rltnllNH'lllllllSlIl, and Fig. is a Plllll view showing some of the. flaw!!!{my levers and (he pints inimedi I! My mwted lherowith which are parts01 the present invention.

The present inrontion includes a plurality of vertical hangers 10arranged side hy side, cross-wise of the machine, one, for each of thety )ewriter key levers 40 or other instrumenta ities of the typewriterwhich it is desired to operate from time to time.

Associated with ih of those hangers is a pawl. 20 which in pivotallyconnected with the hunger and extends forward therefrom, and has at itsfront end an integral pin or point 2i which nornndly rests on the unperforated i l'zm ol u ('(mtroller strip H whieh runs ore] =m=l isearried along hy u rotating eylindur ill). In this eyliuder urneireiunferential rows of poekets ill, whieh are separated hy teeth 32.Whenever :i perforation in the eontroller strip passes henenth thepointed end .21 of a pawl 20, this ond will drop through the perforationinto one of the pockets 3. and in front of one of the teeth 32. As theresult of this since the e \'linder is constantly rotating, the pawlwill he disphiend renrwnrdly. and it will cause eerri-spomling rearwardmovement of that lmnger with which it i associated.

Each hanger has upon its rear side a shoulder 12 whieh when the hungeris displaced rearwardly will eoine henonth the front edge of a depresserhill 6U whieh is eonstnnlly moving up and down through a limited path.When this depressor hill engages the shoulder ii! of a disphn'ed hungerthe hanger is moved down. A part earried hy the hunger, whieh willpresentl he explainndin detail, engages with the key lo er 40 or someother part of the. t y-lllfwl'itlll fl machine, and imparts to it themovement ren quired to enuhlc it to perform the funotlor. for whieh itis provided.

'l'ho depresser him is commonz ho tho common relation to all oi theosi-ioointed pawls Jo. and it operates that one oflthe puwls whose pointfalls through aperforathe various. hangers and their assoeiatod pnivls20 are 100 tion in the controller strip.

suhstuntiully alike, and thuy are supported and guided by the followingmeans: here is a trnnsversolv extended bar 17 in the iipper end of whichare. narrow vertical slots 17", and one of the hangers is slidn-hlc.vertionlly in ear-h of theme alots.

lCui-h hanger IIISS'IA upward alongside of the key 40 with \\'lli('l1 itis associated. Se rured to the upper end of ear-h hanger ahove. the he)lerer is a little hloeli 13. A screw 14 serews down through this blockuntil its lower end is at the proper distance above the assoeiated l e vlever 40. n the rear side of ear-h hlork is a little tongue 15 whichslidahl v tits in the some slot llr in a bar 16 of the t v ien'ritinpniarhine through which the assoriated ke v lever 4 passes lhe lower endof the hanger is therefore guided in a slot in the har I? while theupper end of the hanger is guided by the engagement of the tongue 15 inthe slot in a part It) of the type writer nnu-hine. The forwardlyrojeeting part of the. block 13 lies beneath at iorizontal transversebar 18 in the lower edge of which is a strip of tiher. ruhher or othersound deadening material 18 against \\'llll'll the lilor'k 13 willstrike as it is moved upward The lower end of earh of the. hunger isprovided with a downwardly extended tail piece 19 \\lll(ll, when thehanger is in it.-. normal position, rests against a lini hed snr faee 17on the rear l ner of the ('HHIli hlorh 17. A spring 52 engages with (histail piere '19, and arts to tori-e it against the ha: [7

when that is possihle. spring 54 is also associated with eaeh hanger.'lhis is a small coil spring which is seated in a reeess 55 in the hlorklT,-its projia-ting upper end surrounding a little pin it fixed to thelower end of the hantzer.

From the foregoing it will appear that whenever the mint 21 of any pawl20 drops through a perii *ation in the controller strip S, it will beimmediately engaged by the cylinder 30 and mshed rearward. As it movesrearward tie hanger will also more rearward so as to carry its shoulder12 heneath the constantly rei-iprm'atine depresser bar 60; whereupon thehanger will he depressed and the lever 20 will he roeked; the screwcarried by the hanger will engage the assoeiated lever 40, whereby saidlever will be. operated. Then as the de resser bar moves upward, thespring 53 WI 1 move the ban er upward and the spring 52 will move therun er forward into its normal position in whio its shoulder 12 is nolonger in the path of the] depressor bar.

A guard plate is pivoted at its lower end on a transverse pivot 71 tothe bar 17 and it extends upwardly therefrom fairly close to the strip Swhich is passing the cylinder 30. This guard plate carries atransversely extended rod 72 which lies he hath all ofthe pawls 20, andin such position that when a pawl is displaced rearward and theassociated hen or is moved down, the owl will he hroug, it into contactwith the liar 72; and will then fnlerum and roelr thereon with theresult of lifting the front end 210i the pawl out of engagement with thecylinder and ahove the sin-fare of the exint'roller strip S. When ahanger has been restored to its normal position, this pawl willautomatirally rock hack to the position in whieh its front pointedefldrests upon the surface of the controller strip.

A transverse bar 77 extends over all of the puwls 20, the function ofsaid bar heing to imit the upward movement of the pawls 20 as theassociated hangers are moved down ward.

The upper end of the guard plate 70 is formed with a oomh slot 72 foreaeh of the pawls 20; and each pawl passes through one of these eomhslots and is thereby kept.

in proper operative position. \Vhenever it is desired to put in a newcontroller strip S this guard plate is swung pward and rearwardly uponits pivot; the bottoms of all of the roinh slots engage the lowersurfaee of the pawls 2t! and therehy swin all of said pawls upward sothat their ti'ont ends will he well aliove the sin-fare of the uvlinder.'llo enalile this to he done :4 little |'i.' 'l shaft 8 1 is pivoted tothe frame work of the uie -hanisui. An operatin lever til is li\ed to itand so also is a (nun H2 whieh is shown in dotted lines in i nhieh earnengages the lower Slllftl e ot' th guard plate. Swinging the lever 81rearwardly the cam shaft is rocked and the ram so will engra e the guardplate and rorlr it )OH its pivot'with the result ahore de rrihei l.

'lhe speeitie eyliinler 3th as shown', is made up of alternate toothedwheels 33 and spacing disks 34 all of whirh are mounted and nonrotatahlyserured upon a eentral arhor It? in rontaet with one another. it will henoted that the sparing disks. have no teeth. and also that theirdiameters are sueh that they projert out beyond the liotlonis of tin.[)Utlitlh ill to or sdls lziiitlaltt' to the outer ends of the teeth 1..hey there fore serre as side wa l of said pin-hots and separate theru'rniul'erentiul rows of poekets from one another. A worm wheel 36 isseemed to this arbor, and this is en gaged by a eonstantly driven worm37 whereby the cylinder is constantly rotated. In the particularconstruction shown each pawl 20 has a eyhndrical rear end 23, and thisfits in a cylindrical hole 25 in the associated hanger, there being aslot'26 extendin from this hole through the front end of the hunger forthe passa e of the re- (lneed neck 27 of the mwl. 'I hese awls 20 are ofthe same thie ness as the rangers, and the rear end of each pawl is heldin the eireularhole in the hanger hy the side walls of the slots inwhich thehangers slide. This simplifies and (-heapens the eonstruotion.and renders the operative eonneetion of each pawl with its hanger easyand inexpensive as eompnred with any other form of pivotal connection.

The depressor her 60 may be connected with two arms 61 both of which areconnected with a rock shaft 62. This rock shaft may have a rearwardlyextended arm 63 which is engaged by an eccentric strap 64, the lower endof which embraces an eccentric 65,011 the same shaft 38 which carriesthe worln 37.

Having described my claim 1. In mechanism of the character specill fied,the combination of a rotatably poeki eted cylinder, a perforatedcontroller strip which runs over said cylinder, a vertically movable,hanger, a pawl pivoted to said hanger and extended therefrom over saidcylinder and having a point adapted to rest upon the controller stripand to drop through the holes therein into a pocket in said cylinderwhereby the pawl and hanger will be displaced rearwardly, and means formoving the displaced hanger downward.

2. In mechanism of the character speci tied, the combination of arotatably poi-lo eted cylinder, a perforated controll r strip which runsover said cylinder, a vertically movable hanger, a pawl pivoted to saidhanger and, extended therefrom (H'cl' said cylinder and having a pointadapted to rest upon the controller strip and to drop through the holestherein into a. pocket in Said cylinder whereby the pawl and hanger willdisplaced rearwardly, means for moving the displaced hanger downward. aSpring for elevating the hanger, a spring for (noving the hangerforward, and a stop to limit that forward movement.

3. In mechanism of the character spccilied, the combination of a.rotatably pocketed cylinder, a perforated controller strip which runsover said cylinder, vertically movable hanger, a pawl pivoted to saidhanger and extended therefrom over said cylinder and having a pointadapted to rest upon the controller strip and to drop through the holestherein into a pocket in said cylinder whereby the pawl and hangcr willbe displaced renrwardly, and means for engaging the displaced hanger tomove it downward, a bar which lies beneath the pawl in such positionthat when the hanger is depressed the pawl will engage said bar and haveits front end lifted out of engagement with said cylinder.

4. 1n mechanism of the character specified, the combination of arotatably pock eted cylinder, a perforated controller strip which runsover said cylinder, a vertically movable hanger, a pawl pivoted to saidhanger and extended therefrom over said cylinder and having a pointadapted to rest upon the controller strip and to drop through the holestherein into a groove in said cylinder whereby the pawl and hanger willbe displaced rearwardly, and means for cog-gains the displaced hanger tomove it invention, '1

down ward, and means for restoring the displaced hanger and pawl totheir normal position.

5. In mechanism of the character specified, the combination of arotatably pocketed cylinder, a perforatedcontroller strip which runsover said cylinder, a vertically movable hanger, a pawl pivoted to saidhanger and extended therefrom over said cylinder and having a pointadapted to rest upon the controller strip and to drop through the holestherein into a pocket in said cylinder whereby the pawl and han er willbe displaced yearwardly, and means or engaging the displaced hanger tomove it downward, a bar which lies beneath the pawl in such positionthat when the hanger is depressed the lever will engage said bar andhave its front end lifted out of engagement with said cylinder, meansfor raising said bar and thereby lifting the front end of the pawl outof engagement with the controller strip.

(3. In mechanism of the character specitied, the combination of arotatably pocketed cylinder, a perforated controller strip which runsover said cylinder, a vertically movable hanger, a pawl pivoted to saidhanger and extended therefrom over said cylinder and ha ving, a pointadapted to rest upon the controllz-r strip and to drop through the holesthcrcin into a pocket in said cylinder whereby thc pawl and hanger willbe displaced rcaiwyardly, and means for engaging the dis placed hangerto move it downward, means for restoring the displaced hanger and pawlto their normal positions, and a guard bar which overlies the pawl andlimits its upward movement. I 7. In mechanism of the character specificd, the combination of a rotatably pocketed cylinder, a perforatedcontroller strip which runs ovcr said cylinder, a vertically movablehanger a pawl pivoted to said hanger and extended therefrom over saidcylinder and having a, point adapted to rest upon the controlle stripand to drop through the holes the ein into a pocket in said cylinderwhereby the pawl and hanger will be displaced rearwardly, and means forengaging the displaced hanger to move it downward, a block fixed to theside of said hanger, and a movable member located below said block inposition to be engaged by a part of the same when the hunger isdepressed.

8. In mechanism of the character specified, the combination of arotatably ocketed cylinder, a perforated controller strip which runsover said cylinder, a vertically movable hanger, a pawl pivoted to saidhanger and extended therefrom over said cylinder and having a pointadapted to rest upon the controller strip and to drop through the holestherein into a pocket in said cylinder whereby the pawl and hanger willbe displaced rearwardly and means for engaging the displaced hanger tomore it downward, a block fixed to the side of said hanger, a set screwwhich screws down through said block and projects below the same, and amovable member located below the lower end of said screw in position tobe engaged thereby when the hanger is moved down.

9. In mechanism of the character specified, the combination of arotatahly pocketed cylinder, a perforated controller strip which runsover said cylinder, a vertically mow able hanger, a )awl pivoted to saidhanger and extended t eret'rom over said cylinder and having a pointadapted to rest upon the controller strip and to drop through the holestherein into a pocket in said cylinder whereby the lever and hanger willbe displaced rearwardly, and means for engaging the displaced hanger tomove it downward, a guard plate ivoted at its lower end and extendedpart y over said cylinder said guard plate having vertical slots in itsupper edge, and the pawl being loosely fitted in one of said slots, andmeans for swinging said guard plate upward to lift the pawl out ofengagement with the controller strip.

10. In mechanism of the character specifled, the combination of arotatahly pocketed cylinder, a perforated controller strip which runsover said cylinder. a plurality of yer tically movable hangers, a pawl.pivoted to each hanger having a point adapted to ride upon thecontroller strip and to dro through holes therein into engagement wit 1said cylinder, a lower comb bar ha ring guide grooves for said hangers,an upper comb bar, a block fixed to the side of each hanger having atongue which is slidahly fitted in a groove in said upper comb bar, atransverse bar extending in front of the upper ends of said hangers andoverlying the blocks attached thereto, means for depressing eachdisplaced hanger, and levers located respectively below the blocksecured to the hangers in position to be engaged by devices carried bysaid blocks.

11. In mechanism of lied, the combination of a rotatabl y pocketedcylinder, a perforated controller strip which runs over said cylinder, avertically movable hanger, a pawl having a point ada ted to rest uponthe controller strip and to r0 through holes therein into a groove inLaid cylinder whereby the pawl will be displaced rearwardly,sa1d hangerhaving a transversely extended cylindrical notch in its edge and thepawl having a cylindrical rear end which fits said notch, a comb barhaving a narrow groove in which is slidably fitted that part of saidhanger with which the pawl engages as stated, and means for moving thedisplaced hanger downward.

12. In mechanism of the characterspecified, a cylinder for supportingand driving a perforated controller strip comprising a central arbor andalternately placed toothed and plain disks which are nonrotatablysecured upon said arbor in contact with one another.

In testimony whereof I hereunto affix my signature.

JOHN H. PILLINGS.

the character spool-

